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CN103454801B - Backlight framework and backlight module - Google Patents

Backlight framework and backlight module Download PDF

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Publication number
CN103454801B
CN103454801B CN201310409980.6A CN201310409980A CN103454801B CN 103454801 B CN103454801 B CN 103454801B CN 201310409980 A CN201310409980 A CN 201310409980A CN 103454801 B CN103454801 B CN 103454801B
Authority
CN
China
Prior art keywords
projection
lgp
framework
along
sidewall
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201310409980.6A
Other languages
Chinese (zh)
Other versions
CN103454801A (en
Inventor
黄炳成
黄笑宇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TCL China Star Optoelectronics Technology Co Ltd
Original Assignee
Shenzhen China Star Optoelectronics Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shenzhen China Star Optoelectronics Technology Co Ltd filed Critical Shenzhen China Star Optoelectronics Technology Co Ltd
Priority to CN201310409980.6A priority Critical patent/CN103454801B/en
Publication of CN103454801A publication Critical patent/CN103454801A/en
Priority to PCT/CN2014/070848 priority patent/WO2015032177A1/en
Priority to US14/240,346 priority patent/US9322983B2/en
Application granted granted Critical
Publication of CN103454801B publication Critical patent/CN103454801B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
    • G02B6/0086—Positioning aspects
    • G02B6/0088—Positioning aspects of the light guide or other optical sheets in the package
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0066—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form characterised by the light source being coupled to the light guide
    • G02B6/0073—Light emitting diode [LED]
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
    • G02B6/0093—Means for protecting the light guide
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133608—Direct backlight including particular frames or supporting means
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • G02F1/133314—Back frames

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Planar Illumination Modules (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

The present invention proposes a kind of backlight framework, comprise framework, framework forms the first side wall respect to one another and the second sidewall and the 3rd sidewall respect to one another and the 4th sidewall, in framework, is provided with at least one first projection near the first side wall place; In framework, be provided with at least one second projection near the second side-walls; In framework, be provided with at least one the 3rd projection near the 3rd side-walls; In framework, be provided with at least one the 4th projection near the 4th side-walls; The first projection, the second projection, the 3rd projection and the 4th projection coordinate formation one rest area. It is used for laying the LGP that rule cuts by a comparatively regular rest area, thereby can effectively improve the utilization rate of the former material for cutting LGP, and then realizes the production cost that reduces LGP, the security that simultaneously also can effectively improve LGP. The present invention proposes a kind of backlight module, it also can improve the security of LGP in effectively having reduced production cost.

Description

Backlight framework and backlight module
Technical field
The present invention relates to LCD Technology field, particularly a kind of backlight framework and backlight module.
Background technology
As everyone knows, Thin Film Transistor-LCD (ThinFilmTransistor-LiquidCrystalDisplay, is called for short TFT-LCD) be one of current main flat panel display product. Become modern letterImportant display platform in breath technology, video product. Because body of liquid crystal is not luminous, in order to realize its demonstrationFunction, need to configure backlight (backlight is called for short BL) module.
At present, comparatively the backlight module of main flow adopts side-edge type backlight. It before this will be by light emitting diodeThe lamp bar (LightBar is called for short L/B) of (Light-EmittingDiode is called for short LED) and aluminium extruded compositionBe arranged at backlight frame facet; Then utilize the LGP (LightGuide being arranged on backlight frameworkPlate, is called for short LGP) light is conducted to viewing area scope; Pass through again the blooming piece such as prismatic lens, diffusion sheetProcess, finally form the light source of homogenising.
Wherein, as shown in Figure 1, the mode that common LGP is arranged on backlight framework is at present: cutting outWhen incisal guide tabula rasa 13, in the world of LGP 13 side, (along horizontal both sides, the T of direction shown in figure isLaterally) form respectively projection 14 or groove (being protruding 14 structures shown in figure), then at backlight framework11 buckling groove 15 or the clamping projections that form respectively the cooperation of shape complementarity formula along horizontal both sides (shown in figure areBuckling groove groove 15 structures), then by projection 14 or groove and backlight framework 11 on LGP 13Buckling groove 15 or clamping projection match, LGP 13 is connected in backlight framework 11; Meanwhile,Be respectively arranged with direction L shown in lamp bar 12(figure is longitudinally in backlight framework 11 both sides longitudinally).
But adopt this mounting means, need in the time that LGP cuts, directly form projection or groove, therefore can makeObtain cutting of LGP irregular, thereby cause the utilization rate of the former material for cutting LGP to decline, finally leadCause the raising of production cost.
Summary of the invention
For above-mentioned deficiency of the prior art, the object of the present invention is to provide a kind of backlight framework, it canThe LGP that installation rule cuts, thus the utilization rate of the former material for cutting LGP can effectively be improved.
The object of the present invention is to provide a kind of backlight module, the LGP that it can installation rule cuts, therebyCan effectively reduce the utilization rate of the former material for cutting LGP.
1) a kind of backlight framework provided by the invention, comprises framework, and described framework forms respect to one anotherOne sidewall and the second sidewall and the 3rd sidewall respect to one another and the 4th sidewall,
In described framework, be provided with at least one first projection near described the first side wall place;
In described framework, be provided with at least one second projection near described the second side-walls;
In described framework, be provided with at least one the 3rd projection near described the 3rd side-walls;
In described framework, be provided with at least one the 4th projection near described the 4th side-walls;
Described the first projection, described the second projection, described the 3rd projection and described the 4th projection match and form oneFor the rest area of placing LGP.
2) the of the present invention the 1st) a preferred embodiment in, described the first projection is multiple, andMultiple described the first projections are along being horizontally arranged at interval;
Described the second projection is multiple, and multiple described the second projection is along being horizontally arranged at interval;
Described the 3rd projection is multiple, and multiple described the 3rd projection longitudinally arranges at interval;
Described the 4th projection is multiple, and multiple described the 4th projection longitudinally arranges at interval.
3) the of the present invention the 2nd) a preferred embodiment in, multiple described the first projections are along being laterallyEquidistantly interval arranges;
Multiple described the second projections arrange along being laterally equidistant interval;
Multiple described the 3rd projections are longitudinally equidistant interval and arrange;
Multiple described the 4th projections are longitudinally equidistant interval and arrange.
4) the of the present invention the 1st) to the 3rd) in a preferred embodiment of any one, described theOne projection is identical with the quantity of described the second projection, and described the first projection and described the second protruding edge laterally rightClaim to arrange;
Described the 3rd projection is identical with the quantity of described the 4th projection, and described the 3rd protruding and described the 4th protrudingRise and be longitudinally symmetrical arranged.
5) the of the present invention the 1st) to the 4th) in a preferred embodiment of any one, described theOne projection be more than or equal to along vertical height described LGP thickness 1/2nd, and described first protrudingPlay the thickness that is less than or equal to described LGP along vertical height;
Described the second projection be more than or equal to along vertical height described LGP thickness 1/2nd, andDescribed the second projection is less than or equal to the thickness of described LGP along vertical height;
Described the 3rd projection be more than or equal to along vertical height described LGP thickness 1/2nd, andDescribed the 3rd projection is less than or equal to the thickness of described LGP along vertical height;
Described the 4th projection be more than or equal to along vertical height described LGP thickness 1/2nd, andDescribed the 4th projection is less than or equal to the thickness of described LGP along vertical height.
6) the of the present invention the 1st) to the 5th) in a preferred embodiment of any one, described theOne projection width is longitudinally that himself is along 1/3rd of vertical height;
Described the second projection width is longitudinally that himself is along 1/3rd of vertical height;
Described the 3rd projection is that himself is along 1/3rd of vertical height along horizontal width;
Described the 4th projection is that himself is along 1/3rd of vertical height along horizontal width.
7) the of the present invention the 1st) to the 6th) in a preferred embodiment of any one, described theOne projection is cross section semicircular in shape longitudinally along vertical top;
Described the second projection is cross section semicircular in shape longitudinally along vertical top;
Described the 3rd projection is along vertical top along horizontal cross section semicircular in shape;
Described the 4th projection is along vertical top along horizontal cross section semicircular in shape.
8) the of the present invention the 1st) to the 7th) in a preferred embodiment of any one, described theOn three sidewalls, be provided with at least one first elastic component, on described the 4th sidewall, be provided with at least one second bulletProperty member;
One end of described the first elastic component and described the 3rd sidewall are affixed, the other end of described the first elastic componentAlong the laterally inside extension to described framework;
One end of described the second elastic component and described the 4th sidewall are affixed, the other end of described the second elastic componentAlong the laterally inside extension to described framework.
9) the of the present invention the 8th) a preferred embodiment in, described the first elastic component is two,And two described the first elastic components are arranged on described the 3rd sidewall two ends place longitudinally;
Described the second elastic component is two, and two described the second elastic components are arranged on described the 4th sidewallTwo ends place longitudinally.
A kind of backlight module provided by the invention, comprises the above-mentioned the 1st) to the 9th) in described in any oneBacklight framework and be placed on the described LGP in described rest area;
In described framework, be provided with the first lamp article near described the 3rd side-walls, and described the first lamp bar is placed inBetween described the 3rd sidewall and described the 3rd projection;
In described framework, be provided with the second lamp article near described the 4th side-walls, and described the second lamp bar is placed inBetween described the 4th sidewall and described the 4th projection;
Between described LGP and described framework, be provided with reflection diaphragm.
Compared with prior art, backlight framework provided by the invention, its by the first projection, the second projection,The 3rd projection and the 4th projection match and form comparatively regular rest area (as formed an a rectangle rest area) useIn laying LGP, thereby make can lay the LGP that rule cuts in backlight framework, and then can be effectivelyImprove the utilization rate of the former material for cutting LGP, and the final production cost that reduces LGP of realizing.
Meanwhile, while being placed in backlight framework due to LGP, LGP utilizes first projection, of surroundingTwo projections, the 3rd projection and the 4th projection are disperseed stressed, thereby make LGP in the time being subject to vibratory impulse,Can discharge by multiple stress points; When it can avoid conventional mounting effectively because LGP is at projection or grooveThe problem of locating stressed concentrating and cause LGP easily to break, and then the security that has effectively improved LGP.
In further technical scheme, the first projection, the second projection, the 3rd projection and the 4th projection are all establishedBe set to multiplely, utilize multiple the first projections, the second projection, the 3rd projection and the 4th projection to receive and shake at LGPWhen moving impact, impact power discharges, thereby further improves the security of LGP.
In further technical scheme, by multiple the first projections, the second projection, the 3rd projection and the 4th projectionAll spaced sets, ensure that multiple the first projections, the second projection, the 3rd projection and the 4th projection are stressed evenly,Thereby further improve the security of LGP.
In further technical scheme, the first projection is identical with the second protruding quantity and be symmetrical arranged, and the 3rd is protrudingRise identical with the 4th protruding quantity and be symmetrical arranged, thereby in the vertical and transversely stressed of guarantee LGPEvenly, thus the security that further improves LGP.
In further technical scheme, by the height of the first projection, the second projection, the 3rd projection and the 4th projectionDegree be all set in be more than or equal to LGP height 1/2nd to the height that is less than or equal to LGP, fromAnd in not affecting backlight module subsequent installation, ensure the stability of the installation of LGP as far as possible.
In further technical scheme, wide by the first projection, the second projection, the 3rd projection and the 4th projectionDegree is set as 1/3rd of oneself height, thereby in ensureing the stability that LGP is installed, as far as possibleGround reduces the width of the first projection, the second projection, the 3rd projection and the 4th projection self, and then makes in frameworkThe area of rest area increase as much as possible.
In further technical scheme, by the top of the first projection, the second projection, the 3rd projection and the 4th projectionSemicircle is all arranged in the cross section of portion, can effectively avoid installing when LGP, the first projection, the second projection,The impact of the top of the 3rd projection and the 4th projection to LGP, thereby the damaged risk of reduction LGP, and thenImprove the security of LGP.
In further technical scheme, in framework, install the first elastic component and the second elastic component additional, can beWhen backlight module falls, LGP is cushioned, thus the security that further improves LGP.
In further technical scheme, the first flexible frame and the second elastic component are all set to two, fromAnd the Si Jiaochu ensureing at LGP is provided with elastic component, thus the security that further improves LGP.
Compared with prior art, backlight module provided by the invention, it is inner by the first projection, second protrudingRise, the 3rd projection and the 4th projection match form one comparatively rule rest area (as formed a rectangle rest area)Be used for laying LGP, thus the LGP that the rule that can lay in backlight framework is cut, and then can haveEffect ground improves the utilization rate of the former material for cutting LGP, and final realization reduced LGP and backlight mouldThe production cost of piece.
Meanwhile, while being placed in backlight framework due to LGP, LGP utilize surrounding form the first projection,The second projection, the 3rd projection and the 4th projection are carried out stressed, thereby make LGP in the time receiving vibratory impulse,Can discharge by multiple stress points; When it can avoid conventional mounting effectively because LGP is at projection or grooveThe problem of locating stressed concentrating and cause LGP easily to break, and then effectively improved LGP and backlight mouldThe security of piece.
Above-mentioned technical characterictic can various applicable modes combine or be substituted by equivalent technical characterictic, as long as energyEnough reach object of the present invention.
Brief description of the drawings
Hereinafter by based on only for non-limiting embodiment and carry out more detailed with reference to accompanying drawing to the present inventionDescription. Wherein:
Fig. 1 is the mounting structure schematic diagram of LGP on backlight framework in prior art;
The top view of a kind of backlight framework that Fig. 2 provides for the embodiment of the present invention one;
Fig. 3 is that A-A in Fig. 2 is to cutaway view;
Fig. 4 is that B-B in Fig. 2 is to cutaway view;
The top view of the another kind of backlight framework that Fig. 5 provides for the embodiment of the present invention one;
The internal structure schematic diagram of the backlight module that Fig. 6 provides for the embodiment of the present invention two;
Fig. 7 is that C-C in Fig. 3 is to cutaway view.
Brief description of the drawings:
11-backlight framework, 12-lamp bar, 13-LGP, 14-projection, 15-buckling groove;
2-framework, 21-the first side wall, 22-the second sidewall, 23-the 3rd sidewall, 24-the 4th sidewall, 25-firstProjection, 26-the second projection, 27-the 3rd projection, 28-the 4th projection, 29-rest area;
3-the first elastic component; 4-the second elastic component; 5-LGP; 6-the first lamp bar; 7-the second lamp bar; 8-Reflection diaphragm.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearer, below will be to technical scheme of the present inventionCarry out clear, complete description, based on the detailed description of the invention in the present invention, those of ordinary skill in the art existDo not make all other embodiments that obtain under the prerequisite of creative work, all belong to the present invention and protectScope.
Before description detailed description of the invention, first the directionality noun occurring in the present invention is done to following restriction:
In framework 2, as shown in Figure 2, the vertical line direction setting between the first side wall 21 and the second sidewall 22For longitudinal L, the vertical line direction setting between the 3rd sidewall 23 and the 4th sidewall 24 is horizontal T; As Fig. 3 instituteShow, the vertical line direction setting at the bottom of framework 2 and top is vertical V.
Embodiment mono-:
As shown in Figure 2, the backlight framework providing in the present embodiment, comprises framework 2, and framework 2 forms each otherRelative the first side wall 21 and the second sidewall 22 and the 3rd sidewall 23 respect to one another and the 4th sidewall 24,At the interior close the first side wall of framework 2,21 places are provided with at least one first projection 25; Interior near the in framework 2Two sidewall 22 places are provided with at least one second projection 26; In framework 2, interior close the 3rd sidewall 23 places are provided withAt least one the 3rd projection 27; In framework 2, interior close the 4th sidewall 24 places are provided with at least one the 4th projection28; The first projection 25, the second projection 26, the 3rd projection 27 and the 4th projection 28 match form one forPlace the rest area 29 of LGP.
When use, it is by the first projection 25, the second projection 26, the 3rd projection 27 and the 4th protruding 28 phasesCoordinate form one comparatively the rest area 29(of rule for example form a rectangle rest area 29, in figure shown in dotted line),Then utilize rest area 29 to place LGP; Thereby make can lay the LGP that rule cuts in framework 2,And then can effectively improve the utilization rate of the former material for cutting LGP, and finally realize the life that reduces LGPProduce cost.
Meanwhile, because LGP is placed in framework 2, in the time that LGP is subject to vibratory impulse, LGP can profitDisperse by the first projection 25, the second projection 26, the 3rd projection 27 and the 4th projection 28 of surrounding stressed,Thereby LGP is discharged by multiple stress points being subject to vibratory impulse power; It can avoid tradition effectivelyWhen installation because LGP is in projection or groove is stressed concentrates the problem that causes LGP easily to break, and then effectivelyThe security that ground has improved LGP.
In the present embodiment, due to the first projection 25, the second projection 26, the 3rd projection 27 and the 4th projection 28In the time that LGP is subject to vibratory impulse, impulsive force can be carried out to multiple spot force dispersion, thereby can effectively avoid traditionWhen installation because of LGP projection or groove stressed concentrate cause LGP easily to break problem. For this reason, canThe first projection 25 is set to multiple, and multiple the first projection 25 is along being horizontally arranged at interval; By the second projection26 are set to multiplely, and multiple the second projection 26 is along being horizontally arranged at interval; The 3rd projection 27 is set to manyIndividual, and multiple the 3rd projection 27 longitudinally arranges at interval; The 4th projection 28 is set to multiple, and many(in the present embodiment, the first projection 25 and the second projection 26 are four to the longitudinally interval setting of individual the 4th projection 28Individual, the 3rd projection 27 and the 4th projection 28 are three). So, when LGP is subject to either directionVibratory impulse time, the vibratory impulse power that all can have multiple stress points to be subject to LGP is disperseed, thereby entersOne step improves the security of LGP.
In the present embodiment, further multiple the first projections 25 can be arranged along being laterally equidistant interval; WillMultiple the second projections 26 arrange along being laterally equidistant interval; Multiple the 3rd projections 27 are longitudinally to equidistantInterval arranges; Multiple the 4th projections 28 are longitudinally to equidistant interval to be arranged. Adopt this set, when leadingWhen tabula rasa is subject to the vibratory impulse of either direction, LGP is the party's stressed can establishing by equidistant interval upwardsThe projection of putting averages dispersion, thereby can effectively avoid between multiple projections because of unbalance stress and to LGPCause damage, thereby further improve the security of LGP.
In the present embodiment, further can make the first projection 25 identical with the quantity of the second projection 26, andThe first projection 25 and the second projection 26 are along lateral symmetry setting; The quantity of the 3rd projection 27 and the 4th projection 28Identical, and the the 3rd protruding 27 and the 4th projection 28 is longitudinally symmetrical arranged. Adopt this set, work as leaded lightWhen plate is subject to extensional vibration impact, its stressed position at longitudinal two ends is symmetrical, when LGP is subject to transverse-vibrationWhen moving impact, its stressed position in transverse ends is symmetrical, thereby can effectively avoid LGP to be subject to because of two endsPower is asymmetric and LGP is caused to damage, thereby has further improved the security of LGP.
In the present embodiment, because needs are by the first projection 25, the second projection 26, the 3rd projection 27 and the 4thProjection 28 by light guide plate limiting in rest area 29, therefore the first projection 25, the second projection 26, the 3rd protrudingRise 27 and the 4th projection 28 should there is certain height, but due in assembling when backlight module, on LGPMiscellaneous part also will be installed by side, therefore the first projection 25, the second projection 26, the 3rd projection 27 and the 4th projection28 height can not have influence on the installation of miscellaneous part. For this reason, need to the first projection 25, the second projection 26,The height of the 3rd projection 27 and the 4th projection 28 limits. Concrete, the first projection 25 is along vertical heightDegree be more than or equal to LGP thickness 1/2nd, and the first projection 25 is less than along vertical height orEqual the thickness of LGP; The second projection 26 is more than or equal to two points of thickness of LGP along vertical heightOne of, and the second projection 26 is less than or equal to the thickness of LGP along vertical height; The 3rd protruding 27 edgesVertical height be more than or equal to LGP thickness 1/2nd, and the 3rd projection 27 is along vertical heightDegree is less than or equal to the thickness of LGP; The 4th projection 28 is more than or equal to the thick of LGP along vertical height/ 2nd of a degree, and the 4th projection 28 is less than or equal to the thickness of LGP along vertical height. TherebyIn not affecting backlight module subsequent installation, ensure the stability of the installation of LGP as far as possible.
In the present embodiment, because the LGP of framework 2 interior placements is the scope of viewing area, therefore should try one's bestExpand the area of rest area 29. And the first projection 25 arranges near the first side wall 21, the second projection 26 is closeThe second sidewall 22 arranges, and the 3rd projection 27 arranges near the 3rd sidewall 23, and the 4th sidewall 24 is near the 4th sideWall 24 arranges, simultaneously between the 3rd projection 27 and the 3rd sidewall 23 and the the 4th protruding 28 and the 4th sidewall 24Between lamp bar all will be set, therefore in order to expand the area of rest area 29 as far as possible, need to the first projection 25,The width of the second projection 26, the 3rd projection 27 and the 4th projection 28 limits. Concrete, the first projection25 width are longitudinally that himself is along 1/3rd of vertical height; The second projection 26 width longitudinallyFor himself is along 1/3rd of vertical height; The 3rd projection 27 is that himself is along vertical along horizontal widthHeight 1/3rd; The 4th projection 28 along horizontal width be himself along three of vertical height/One. Thereby in ensureing the stability that LGP is installed, reduce as much as possible the first projection 25, second protrudingPlay 26, the 3rd projection 27 and the 4th projection 28 self width, and then make the rest area 29 in framework 2Area increase as much as possible.
In the present embodiment, in LGP is seated to rest area 29, LGP likely with the first projection 25,The second projection 26, the 3rd projection 27 contact with the top of the 4th projection 28, if the first projection 25, secondThere is sharp-pointed projection in projection 26, the 3rd projection 27 and the top of the 4th projection 28, itself and LGP jointTime likely LGP is caused to certain damage, thereby affect the serviceability of LGP. For this reason, as Fig. 3Shown in Fig. 4, the first projection 25 is cross section semicircular in shape longitudinally along vertical top; The second protruding 26 edgesVertical top cross section semicircular in shape longitudinally; The 3rd projection 27 is along horizontal cross section along vertical topSemicircle; The 4th projection 28 is along vertical top along horizontal cross section semicircular in shape. By the first projection 25,Semicircle is all arranged in the cross section at the top of two projections 26, the 3rd projection 27 and the 4th projection 28, can be effectivelyAvoid in the time that LGP is installed the first projection 25, the second projection 26, the 3rd projection 27 and the 4th projection 28The impact of top to LGP, thereby reduce the damaged risk of LGP, and then the security that improves LGP.
In the present embodiment, in the time that LGP is subject to vibratory impulse, it is to utilize multiple projections to enter vibratory impulse powerRow disperses to discharge, but when vibratory impulse power is excessive the vibratory impulse power of time generation (as fall), each projectionImpulsive force after dispersion still may be larger, therefore still likely causes damage even to break to LGP, therebyAffect the security of LGP. For this reason, as shown in Figure 5, on the 3rd sidewall 23, be provided with at least one firstOn elastic component 3, the four sidewalls 24, be provided with at least one second elastic component 4; The first elastic component 3One end and the 3rd sidewall 23 are affixed, and the other end of the first elastic component 3 is along the laterally inside extension to framework;One end of the second elastic component 4 and the 4th sidewall 24 are affixed, the other end of the second elastic component 4 along laterally toExtend the inside of framework.
When use, when LGP be placed to rest area 29 interior after, the side by the first elastic component 3 with LGPWall is connected, and the second elastic component 4 and another sidewall of LGP are connected. Utilize the first elasticity structurePart 3 and the second elastic component 4 can, in the time that backlight module falls, cushion LGP, thereby furtherImprove the security of LGP.
Further preferred, the first elastic component 3 is two, and two the first elastic components 3 are arranged on theThree sidewalls 23 two ends place longitudinally; The second elastic component 4 is two, and two the second elastic components 4Be arranged on the 4th sidewall 24 two ends place longitudinally. Thereby the Si Jiaochu ensureing at LGP is provided with elasticityMember, thereby the security that further improves LGP.
Wherein, the first elastic component 3 and the second elastic component 4 preferably all adopt ring spring. Adopt annularSpring, it utilizes self elastic force to cushion LGP in a lateral direction, in a longitudinal direction simultaneously, ringShape spring also can cushion LGP by the bending strength of self.
Embodiment bis-:
As shown in Figure 6 and Figure 7, in the present embodiment, provide a kind of backlight module, comprise in above-described embodiment oneThe backlight framework of any one and be placed on the LGP 5 in rest area 29; Interior near the 3rd side in framework 2Wall 23 places are provided with the first lamp bar 6, and the first lamp articles 6 is placed between the 3rd sidewall 23 and the 3rd projection 27;Be provided with the second lamp articles 7 near the 4th sidewall 24 places framework 2 is interior, and the second lamp articles 7 is placed in the 4th sidewall24 and the 4th between projection 28; Between LGP 5 and framework 2, be provided with reflection diaphragm 8.
When use, it is inner by the first projection 25, the second projection 26, the 3rd projection 27 and the 4th projection 28Match form one comparatively the rest area 29(of rule for example form a rectangle rest area 29, in figure shown in dotted line),Then utilize rest area 29 to place LGP 5; Thereby make can lay the LGP 5 that rule cuts in framework 2,And then can effectively improve the utilization rate of the former material for cutting LGP 5, and final realization reduced LGP 5And the production cost of backlight module.
Meanwhile, because LGP 5 is placed in backlight framework, in the time that LGP 5 is subject to vibratory impulse, leadTabula rasa 5 can utilize the first projection 25, the second projection 26, the 3rd projection 27 and the 4th projection 28 of surrounding to enterRow disperses stressed, thereby LGP 5 is discharged by multiple stress points being subject to vibratory impulse power; It canWhile effectively avoiding conventional mounting because LGP 5 causes LGP 5 easily broken in projection or stressed the concentrating of grooveThe problem of splitting, and then the security that has effectively improved LGP 5 and backlight module.
Finally it should be noted that: above embodiment and embodiment be only in order to technical scheme of the present invention to be described, andNon-to its restriction; Although the present invention is had been described in detail with reference to aforementioned embodiments and embodiment abilityThe those of ordinary skill in territory is to be understood that: the technology that it still can be recorded aforementioned embodiments or embodimentScheme is modified, or part technical characterictic is wherein equal to replacement; And these amendments or replacement,Do not make the essence of appropriate technical solution depart from spirit and the model of embodiment of the present invention or embodiment technical schemeEnclose.

Claims (9)

1. a backlight framework, comprises framework, and described framework forms the first side wall respect to one another and the second sideWall and the 3rd sidewall respect to one another and the 4th sidewall, is characterized in that,
In described framework, be provided with at least one first projection near described the first side wall place;
In described framework, be provided with at least one second projection near described the second side-walls;
In described framework, be provided with at least one the 3rd projection near described the 3rd side-walls;
In described framework, be provided with at least one the 4th projection near described the 4th side-walls;
Described the first projection, described the second projection, described the 3rd projection and described the 4th projection match and form oneFor the rest area of placing LGP;
On described the 3rd sidewall, be provided with at least one first elastic component, on described the 4th sidewall, be provided with at leastSecond elastic component;
One end of described the first elastic component and described the 3rd sidewall are affixed, the other end of described the first elastic componentAlong the laterally inside extension to described framework;
One end of described the second elastic component and described the 4th sidewall are affixed, the other end of described the second elastic componentAlong the laterally inside extension to described framework; Described the first elastic component and described the second elastic component are annularSpring.
2. backlight framework according to claim 1, is characterized in that, described the first projection is multiple,And multiple described the first projections are along being horizontally arranged at interval;
Described the second projection is multiple, and multiple described the second projection is along being horizontally arranged at interval;
Described the 3rd projection is multiple, and multiple described the 3rd projection longitudinally arranges at interval;
Described the 4th projection is multiple, and multiple described the 4th projection longitudinally arranges at interval.
3. backlight framework according to claim 2, is characterized in that, multiple described the first projections are along horizontalArrange to being equidistant interval;
Multiple described the second projections arrange along being laterally equidistant interval;
Multiple described the 3rd projections are longitudinally equidistant interval and arrange;
Multiple described the 4th projections are longitudinally equidistant interval and arrange.
4. backlight framework according to claim 1, is characterized in that, described the first projection and described theThe quantity of two projections is identical, and described first projection and described the second projection along lateral symmetry setting;
Described the 3rd projection is identical with the quantity of described the 4th projection, and described the 3rd protruding and described the 4th protrudingRise and be longitudinally symmetrical arranged.
5. backlight framework according to claim 1, is characterized in that, described the first projection is along verticalHighly be more than or equal to described LGP thickness 1/2nd, and described the first projection is along vertical heightBe less than or equal to the thickness of described LGP;
Described the second projection be more than or equal to along vertical height described LGP thickness 1/2nd, andDescribed the second projection is less than or equal to the thickness of described LGP along vertical height;
Described the 3rd projection be more than or equal to along vertical height described LGP thickness 1/2nd, andDescribed the 3rd projection is less than or equal to the thickness of described LGP along vertical height;
Described the 4th projection be more than or equal to along vertical height described LGP thickness 1/2nd, andDescribed the 4th projection is less than or equal to the thickness of described LGP along vertical height.
6. backlight framework according to claim 1, is characterized in that, described the first projection longitudinallyWidth is that himself is along 1/3rd of vertical height;
Described the second projection width is longitudinally that himself is along 1/3rd of vertical height;
Described the 3rd projection is that himself is along 1/3rd of vertical height along horizontal width;
Described the 4th projection is that himself is along 1/3rd of vertical height along horizontal width.
7. backlight framework according to claim 1, is characterized in that, described the first projection is along verticalTop cross section semicircular in shape longitudinally;
Described the second projection is cross section semicircular in shape longitudinally along vertical top;
Described the 3rd projection is along vertical top along horizontal cross section semicircular in shape;
Described the 4th projection is along vertical top along horizontal cross section semicircular in shape.
8. backlight framework according to claim 1, is characterized in that, described the first elastic component is twoIndividual, and two described the first elastic components are arranged on described the 3rd sidewall two ends place longitudinally;
Described the second elastic component is two, and two described the second elastic components are arranged on described the 4th sidewallTwo ends place longitudinally.
9. a backlight module, is characterized in that, comprises in the claims 1 to 8 described in any oneBacklight framework and be placed on the described LGP in described rest area;
In described framework, be provided with the first lamp article near described the 3rd side-walls, and described the first lamp bar is placed inBetween described the 3rd sidewall and described the 3rd projection;
In described framework, be provided with the second lamp article near described the 4th side-walls, and described the second lamp bar is placed inBetween described the 4th sidewall and described the 4th projection;
Between described LGP and described framework, be provided with reflection diaphragm.
CN201310409980.6A 2013-09-09 2013-09-09 Backlight framework and backlight module Expired - Fee Related CN103454801B (en)

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